小弟有個關於化學 chem既問題想請教下各位

Beer's law stated that the absorbance of a dilute solution is directly proportional to the concentration of the solution provided that all other factors remain constant.

A calibration curve of Beer's law is shown below:
http://www.wellesley.edu/Chemistry/Chem105manual/Lab04/BeersLawPlot.jpg

圖片參考：http://www.wellesley.edu/Chemistry/Chem105manual/Lab04/BeersLawPlot.jpg


To make the calibration curve, dilute solutions with different concentrations are prepared, and then the absorbance of each solution is measured using a colorimeter with a suitable filter under certain fixed conditions.

Use of the calibration curve:
The absorbance of a real sample solution is measured under identical conditions as making the calibration curve. The concentration of the real sample solution is determined from its absorbance reading by using the calibration curve. For example, if the absorbance of a real sample solution is found to be 0.5 under identical conditions as making the calibration curve, the concentration of the real sample solution is determined to be 0.25 M by using the calibration curve.

2010-03-24 16:14:19 補充：
The one-sentence answer:

The calibration curve of Beer's law is a plot of the absorbance of dilute standard solutions against the concentration of the dilute standard solutions.